Popeyes does cook fries in large batches like other fast food places like McDonald's or Burger King. They don't sell them as often due to the fact they have a wider variety of side items than others. Mash potatoes, Cole slaw, and red beans are their top selling sides. Plus, cooking fries to order allows them to always serve their fresh and hot every time.
Were they fresh? My guess would be they were having issues with the fryer. Out of oil, needed changing, malfunction, etc.
Thanks! Your answer is awaiting moderation.